Machine for pasting battery grids



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W, F. RCHARDS 'MACHINE FUR PASTING BATTERY GHIDS Filed Nov. s., 192i 5 Smeets-sheet 1 July 2s, 1925. 11,547,523 W. F. RICHARDS MACHINE FOR PASTING vBATTERY GRIDS Filed No'v. 5. 1.921 s sheets-Sheet 2 L72 ven OT;

'by' @w @M w. F. RICHARDS MACHIN E FOR PASTING BATTERY GRIDS July 28e 1925.

Filed Nov. 5,. 192; :sheets-sheet s Patented July '28,l 1925.

f VUNITED-- STATES l 1,547,523 PATENT OFFICE..

WILLARD r. RICHARDS, on DRREW, NEW YORK, AssIGNoR To GoTiLD STORAGE BAT- TRRY OOMPANY INCORPORATED, or .DEBER NEW YORK, A CORPORATION OF MARYLAND.

Application led November To all whom t may concer/rt.'

Beit known that I, VILLARD F. RICHARDS,

a citizen ofthe United States, residing -at Depew, in the countyof Erie and State. of New York, haveeinvented new and useful Improvements in Machines for Pasting Bat-v tery Grids, of which thefollowing is a speciication. y

This invention relates to a' machine for applying paste to the grids of storage batteries.

It is Well known in this'art that in Order to obtain the most satisfactory results, the paste must be of proper and uniform density over the entire area of the battery grid. If

the paste is packed too densely in the cells, the acid cannot act properly on all parts thereof, while if not dense enough, the paste falls out andthe grid is 'short lived.

One of the Objects of my invention is the provision of an eiiicient machine which. shall paste all of the cells of the grid with equal density and at thesame time smoothly finish thelfaces of the grid, so as to require no hand labor for this. purpose.

v ,A further Object is to produce a compact machine having a Vcomparatively large capacity. -l

In theaccompanying drawings: Figure 1 is a sectional side elevation of the improved machine. Figures 2 and 3- are horizontal sections thereof: on the correspondingly numbered lines in Fig; 1. Figure 4 is a vertical transverse section on line 4-4, Fig. 1. Figure 5 is afragmentary. vertical transverse section'on line 5-5 Fig. 1. vFigure 6 is an enlarged fragmentary longitudinal section on lineA 6-6,F ig. 2V.

Similar characters of reference indicatecorresponding parts throughout the several views.'

,The main frame of the machine prefer? ably comprises a standard or pedestal 10,

a supporting head 11 bolted tothe top thereof, and brackets or'arms 12, 12, bolted or otherwise secured to opposite sides of said 1n its general organizatiomthe machine comprises a'rotatable tablefor carrying the battery grids; a feed chamber.. 01j receptacle for the paste disposed above theftable; means. for .continuously feeding the paste-.onto the grids as the table isrotated, and a revolving designios pressing v,the pasteccmpactlys `apply to both;

5, 1921. seriai'No. 513,202. l

and uniformly into the cells or interstices of the. grids. l'Ihese mechanisms are duplicated in the machine shown inthe drawings,

being arranged on either'side of the standj ard 10, andinasi'nuch asthey are identical 1n constructlon, a description of one will 13 represents the rotatable table having a .depending spindleor stem 14 journaled in lthe bearing 15 carried-by the corresponding 4bracket 12. Suita'bly held on the upper side fof thistable are thebatterygrids 16y of usual form which are" arranged radially thereof. .The preferred means "for this purpose consist of a raised central spacer or plate 17'of rectangular form and a plurality of Vraised quadrantal space-plates 17a. ar-

ranged radially at the corners of said cen- 'v j tral plate and formmg intervening seats or recesses 18 for the reception ofthe battery grids, as shown in Figs. 2 and 6'. These space-plates are removably secured to the table. by screws 19 'or other appropriate v means andare vflush with the grids, so as to lform ya smooth, continuous sur-face therewith and prevent the paste from being .deposited between adjacent grids. For difv ferentV sized grids, space-plates of corre-' spondingly different sizes are employed.

As sho-wn in Fig. 6, each grid preferably .rests upon a slab 131 of glass, slatefor similar material to which-the paste will not adhere, thisl slab being Asuitably embedded in the table, 'with its face Hush therewith.

Disposed vertically above the table 13 `and preferably between its center and the stand- -2, itis embraced by upper and lower straps 21, 21 which are' bolted or otherwise secured the` supporting head -11 of the machine. -By loosening. the clamping bolts 22 of these straps, :.tlie" chamber lmay be .adjusted vertically. to adapt it tothe varying thickness 'of different grids.`

oo ard 1'0 isthefeed chamber or'receptacle`-20- for containing the" lead Oxide paste which The means for"continuously. forcingwfor feeding the paste downwardly onto the grids may be of any appropriate forni, but the.- preferred iiieans shown comprise a weighted piston 23 guided in the feed chamber and provided with a rod 24 extending upwardly' therefrom for removing it from the chamber when desired. In practice, a pressure of about'eighty pounds has been found to produce satisfactory results.v As the head or weight of the paste-mass diminishesn proportion to-its consumption by the batteryI grids, additional weights may beplaced on the rod 24 to compensate for such loss of pressure. 1"

vrlhe device for uniformlyrfilling and press ing the paste into the interstices of the grids is located at the discharge end of the feed chamber 2() and as shown in Figs. 1 and 2, preferably consists of a rotary horizontal head 25 journaled in a vertically-divided bearing or ring ,25a removably secured to the lower end` of said chamber by bolts 25h, or other suitable means This head is of annular forni and its internal diameter is subi stantially the saine as that of the bore o f the feed chamber. Mounted on radial arms 25' of this head are a plurality of wipers, blades or trowels 27 which are inclined rearwardly and arranged to sweep over the surface-of the grids, so as to wipe and press the paste into their cells and uniformly and oompactly fill them and at the same time scrape y off the surplus and smooth.offthe faces of. the grids. As shown, these wipers are riv-y eted or otherwise secured to suitable holders- 2S removably attached to the cross arms by bolts 29. The wipers preferably consist of flexible steel blades, which are capable of y adapting themselves to any uneveniiess of of the main frame and journaled iIr.c bear- Aconstructed as follows:

30 represents the main driving shaft of the machine which is arranged transversely ings 31 mounted on the standard 1-0. Secured to the rear end of this shaft is a suitable source of power. A worin 33 keyed to the front 'end of said driving shaft meshes Awith a worm wheel 34 secured to a longitudinal driven shaft 35journaled intermediate its ends in bearings 36, 36 and atwis ends in^bearings 37, 37. Secured to thls driven shaft are two bevel gears 38 and 39,'

which indirectly transmit motion to the wiper head 25 yand table 13, respectively.

The bevel gear 3S meshes with a similar gear 40 mounted on the upper end of-a Vertical shaft 41 journaled in bearings 42, and a comparatively large spur gear `43, Fig. 3, secured to the lower `end ofsaid vertical ,shaft meshes with a smaller gear 44 mounted Qn the lower end of a vertical shaft 45 jouriialed in upper and lower bearings46 and 47,. respectively. 1A gear. 48secu`redtoithe upper `end ofthe shaft 45 meshes witli agear rim 49 fixed to the wiper head 25. @Elie gear riin is beveled on itsun'derside, as shown at 49a to facilitate the passage" of the srotary table and the. grids under i The bevel gear 39 meshes with a similar gear 5() mounted on the front end of a trans verse shaft 51 ournaled in suitable bearinvs 52,said shaft carrying a worm 53 which,v meshes with acomparatively large wormwheel 54 keyed tothespindlel 14' of the table 13. By these gear trains, each table is rois as Assume the feed chambers 2O to be filled t with paste and a set of grids 16 to be mou'ntedon each of the tables 13. Power is now applied to the driving shaft 30 which transmits niotion to the tables and lwiper heads 25 in the direction indicated by the arrows. During the rotation of these parts, the paste is forced downwardly under the pressure of the weighted piston 23 `onto tliegrids as they successively pass under the wipers, the paste being wiped'and pressed into the cells of the grids by the wipers l27', which at the Sametime smooth and uniformly finish the surface of the `illedcells, thus wholly dis- -peiising withhand labor for this purpose.

After pasting a set of grids, they are removed from the table,"without stopping the machine and are replaced by another set of im).

unpasted grids, the operation of the ma .chine thus being continuous.

By this improved machine, a large numlvber of grids are uniformly pasted in a relapulley 32 which may bevconnected to any tively short period of time, effecting va considerable saving and correspondingly reducing the cost of production.

YAn vimportant feature of the machine is.,

:the combination of the rotary Wipers with the rotary grid supporting table, whereby all parts of thel grids are wiped or pastedin tral-fsuppo'rting shaft in the .paste receptacle der contained such a shaft.

`pastiiig of the grids With equal density over their Ventire area and from side to side thereof. l y

As the rotarymiper-head is'supported and journaled at itsperiphery by means of the divided vbearing ring 25, the use hof a cen- 20 is avoided. This permits the cylinder andthe Wiper head to be cleaned with greater ease vand thoroughness than if the cylin- This is done by removing. thepaste receptacles from the straps Q1 andfthen disconnecting the Wiper headfrom the receptacle by removing the divided ring 25a.

I claim as myinvention:

'lf'A machine for pasting battery grids, comprising a rotatable table having radiallydisposed holding means for the grids, a paste feeding chamber disposed above `said tableand atene side of its axis, and rotatable means located atthe discharge end of said chamber for pressing the paste into the cells oit the "grids, Ysaid paste-pressing means being rotatable in a direction,I Oppb- 1 2. A machine for pasting battery grids, comprising a paste `feeding chamber, a r0 'tatable grid-carrying-table arranged under the discharge end of saidchamb'er, grid holding Ameans arranged radially of said table -tobring the grids successively into register with said chamber, and a rotary Wiper-blade located at the discharge end of said chamber for pressing the paste into the` grids.

3. A machine-for pasting battery grids,

- comprising a paste feeding chamber, a rotatable grid-carrying table arranged under the discharge end of said chamber, anda 'rotary head arranged at the discharge end ofsaldchamber, said head carrying iiexible inclined Wiper-blades for 'pressing the paste into the cells of the grids.

4. 'A machine for pasting battery grids,

comprising a rotatable table lraving raised space plates thereon forming intervening seats for the grids, grid-supporting slabsarranged in sai-d seatsetnd constructedof a material to Which the paste Will `not adhere, and a paste feeding chamber disposed above said table. 5. A machine for pasting battery grida comprising a rotatable table'having raised quadrantal plates spaced apart to receive grids between them, and a vpaste-feeding chamber disposed above said table.

' G. A machine for pasting battery grids, comprising a support `for the grids to be pasted, `a paste receptacle disposed above said vsupport, for delivering the paste upon the grids, a bearing removably arranged at the discharge end of said receptacle, and a rotary device mounted 'in said bearing for pressing the paste into the grids.

7. A machine for pasting battery grids, comprising a support forthe grids to be pasted, a paste receptacle disposed abo've said support for deliveringthe paste upon the' grids, a divided bearing-ring removably arranged at the discharge end of said receptacle, and a rotary Wiper head journaled pasted, a paste receptacle disposed above said support and delivering Vthe pastenpo-n the grids, a rotary jhead located at the dis- Achargelepd of said receptacle and having a blade arranged to sweep over the grids placed ons-aid Support, said head having a gear-rim, and a driving gear meshing With said rim. y

9. A machine for pasting battery grids, comprising a rotatable table for supporting the grids, a paste 'receptacle disposed above said table and delivering the paste upon the gridsa rotary Wiper located at the' dis charge end of said receptacle, and means for rotating said table and said Wiper at dier` ent speeds.'

10. `A machine for pasting battery grids, -comprising a rotatable table for supporting the grids, `a paste receptacle disposed above said table and deliveringfthe paste uponA the grids, Aa rotary Wiper located atthe -dischargeend of said receptacle, and means for rotating said table and said Wiper 'in'opposite directions and at different speeds. l

WLLARD F. RICHARDS 

